Hanger for grinding-stones



No. 626,962. Patented lune l3, I899.

F. M. BIRD.

HANGER FDR GRINDING STONES.

(Application filed Dec. 8, 1898.)

(No Model.)

a I j 4, r /f/ m A J 7 fl IN VE N 70/? WITNESSES A TTOH/VE rs.

Y: Noam; PETERS 00., Pno'rauma, wnsmuprou, o. c-

linden STATES ATENT FLETCHER M. BIRD, OF \VENATOIIEE, WASHINGTON.

HANGER FOR GRINDING-STONES.

SPECIFICATION forming part of Letters Patent N 0. 626,962, dated June13, 1899.

. Application filed December 8, 1898. Serial No.698,628. (No model.)

To all whom it may concern.-

Be it known that I, FLETCHER M. BIRD, of VVenatchee,iu the county ofKittitas and State of Vashington, have invented a new and ImprovedHangerfor Grindstones, of which the following is a full, clear, andexact description.

The object of the invention is to provide a tain its position untilpurposely released and which may be adapted to stones of differentdiameters.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a vertical section through a grindstone and the improvedhangers applied to the stone, the spindle being shown in side elevation.Fig. 2 is an inner face view of one of the flanges of the hanger, theeye of the stone being shown in dotted lines to illustrate the positionof the hanging devices relative to the said eye; and Fig. 3 isatransverse section on the line 3 3 in Fig. 2.

A represents a spindle which is provided with a collar 10 and with anexterioflythreaded surface 11 at a suitable distance from the collar,andin the drawings the spindle A is shown as provided with polygonal endsurfaces 12 to receive cranks or pulleys.

The grindstone Bis of the ordinary character and is provided with theusual rectangular eye B, as shown particularly in Fig. 2. The hangingdevice for the stone consists of two flanges O and O, which arepreferably made of metal and are provided upon their outer surfaces withoffsets 13, extending from a central hub 1 1 to the periphery of theflanges, the offsets being usually four in number and locatedequidistant apart, as shownin dotted lines in Fig. 2. Each offset 13 isprovided with a longitudinal bore 15, that extends from its outer end toa connection with a recess 16, the recesses 16 being made in the innerfaces of the flanges, as is particularly illustratedin Fig. 1.

In the bore 15 of each ofiset is located a hanging-arm 17, preferably inthe form of a bar or rod, and each hanging-arm is provided at its innerend with a head 18, that is at a right angle to the body of the bar orarm, and the said heads extend inward from the recesses 16. The bodyportion of each hanging rod or bar 17 is threaded at its exterior orouter end in order to receive a nut 19, as particularly shown in Fig. 1,and by adjusting the nuts 19 the adjustment of the inner or headportions of said hanging-rods is controlled.

In the application of the improved hanger one of the flanges-the flangeO, for exampleis slipped upon the spindle A until its hub 14 engageswith the collar 10 of the spindle. The stone B is then placed upon thespindle, and the heads 18 of the hanging-arms 17 of the flange C aremade to engage with the corner or angular portions of the eye B of thestone, as shown in Fig. 2. The flange O is next placed upon the spindle,and the heads 18 of its hanging-arms are made to engage likewise withthe angular or corner portions of the eye of the stone, and, finally, alocknut- 20 is screwed upon the threaded portion of the spindle and thenut is carried to an e11- gagement with the hub of the flange C, forcingthe flanges firmly against the side surfaces of the stone. If thestoneis not exactly true, it may be readily placed in true position byloosening or by tightening certain of the hanging-arms 17 through themedium of their lock-nuts 10.

It is obvious that under this construction of hanger a grindstone may beaccurately hung at less expense and much more conveniently than when theordinary form of hanger is employed, and, furthermore, that any personof ordinary intelligence may quickly true a stone, which operation isexceedingly difficult when the usual form of hangers is employed.

In order that the hangers may turn with lar 10 to the threaded surface11, as shown in Fig. 1, and the hub-section of each flange is 7 providedwith a central opening 22, adapted to receive the spindle.

receive the feather or key 21, as shown in Fig. 2.

sition is due entirely to its engagement With the hanging-arms 17.

Having thus described my invention, I claim as new and desire to secureby Letters Pa.tent

1. A flange or head for mounting grindstones, the same havingradially-adjustable suspending devices for the stone.

2. A flange or clamping-head for a grindstone, provided with adjustablehangingarrns, portions of the said arms being arranged for engagementwith the eye of the stone to be hung, as described.

3. In a device for hanging grindstones, a flange or clainping-headprovided with radially-disposed hanging-arms, each hangingarin beingprovided'with a head at its inner end at an angle to its body, the headsextending beyond the innerface of the flange or clamping-head, asdescribed.

4. In hangers for grindstones, a clamping- Each of said open- I ings isprovided with a recess 23, arranged to It will be understood that theflanges O and i O are virtually clamping-heads and that the suspensionof the stone in true running ponation, with a spindle, of clamping-headsor head or flange provided with radially-disposed bores extending fromits periphery, and recesses in the inner face of the head orflange,connecting with the said bores, hanging-arms located in said bores, andcapable of end movement therein, each hanging-arm being provided with ahead-section that extends in- Ward through a recess in the clamping-head1 or flange, and lock-nuts located at the outer ends of the saidhanging-arms, for the purpose described.

5. In a hanger for grindstones, the combiflanges held stationary uponthe said spindle,

' each clamping-head being provided With radial bores extending from itsperiphery, each bore meeting a recess produced in the inner face of theflange or head, and hanging-arms the body portions of which have endmovement in the said bores, each clamping-arm being provided With anadjusting-nut at its outer end and a head at its inner end, the saidheads extending inward from the recesses of the flanges orclamping-heads beyond their inner faces, the disposition of thehanging-arms being the same in each of the flanges or clamping-heads, asand for the purpose specifled.

FLETCHER M. BIRD.

\Vitnesses:

W. O. PARR, L. V. WELLS.

